Oh, the similarities

In all three versions of the scenes with Electra, there are some major similarities. Obviously, the fact that her brother, Orestes, has been exiled and wants to avenge his father's murder. Another is the part that he is always with Pylades, yet Pylades never speaks. They are constantly together, and as each story progresses, Orestes and Pylades hide somewhere as to not be seen, let it be a physical thing as they hide in the bushes, or an appearance thing as Orestes disguises himself as a messenger to tell Clytamnestra that Orestes has died because he knows that she will not recognize him.
But Clymtemnestra is not the only one who does not recognize Orestes. Electra does not recognize him when she sees him in any of the versions. In Sophocles' version, she does not believe that it is him until she sees the ring of her father on his hand. She then all of a sudden knows that it is him. In the Euripides version, the old man is the one who knows that it is Orestes. He sees a lock of hair that matches Electra's, and the foot prints, but she turns down every single idea that it could be Orestes'. It isn't until the old man points out a scar on Orestes' forehead that she believes it is him. And in Libations bearers, she believes almost immediately that her brother is there when she sees a lock of hair that she believes matches her own, and she sees foot prints that match hers.
I believe that each of the three interpretations has a major effect on the Oresteia as a whole due to the fact that they all revolve around relationships. In The Eumenides, Electra and Oreste's are not characters mentioned, yet they still have a connection because they are the children of Clytemnestra and Agamemnon. It isn't until Libation Bearers that they appear and the relationship between the two of them and their mother is as horrible as would be expected, and there is the reference of the murder of their father from Agamemnon. Also, the intensity of the relationships is different in each of the renditions. In Libation Bearers, the relationship between the children and their mother is not as intense as the relationship between them in Euripides' Electra. This is seen because they take more time to speak about killing their mother in Libation Bearers, but they quickly jump to the thought in Electra. This shows that the relationship effects the dramatics of the play.
I believe if there is a strong sense resentment and hate between two characters, and I can feel it when I read their lines, then it is more dramatic to me to picture. The feelings of hate felt by Electra and Orestes towards Clytemnestra adds to the dramatics of the Oresteia as a whole.